, also read as Tonna; lay name – Nikaidà  Sadamune (äºÂéÂÂå Âè²Âå®Â), was a Japanese Buddhist poet who was a student of Nijà  Tameyo. Ton'a took a tonsure at Enryaku-ji Temple, but was later associated with the Ji sect (founded by Ippen). He looked up to Saigyà Â's poetic genius.
The following are two of his best-known poems:
In 1367, Ashikaga Yoshiakira hosted a poetry gathering at Nii-Tamatsushima Shrine. The scroll consist of three poems, and the script's casual arrangements indicates influence from Fujiwara no Yukinari. The scroll originally was owned by Fujita Denzaburà  until 1934, subsequently sold in Kyoto in 2014 to collectors Mary and Cheney Cowles, who then donated the scroll to the Metropolitan Museum of Art in 2022 (Accession 2022.432.5).